Pregunta de entrevista de The Home Depot

Why is a manhole cover round?

Respuestas de entrevistas

Anónimo

27 nov 2009

It's because it is the only shape that no matter how you turn or flip it, it will not fall down the manhole.

9

Anónimo

25 nov 2009

because, viewed from above, that is the general shape of people. Therefore, a round shape creates the smallest entrance which will accommodate most people.

1